JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
<a href="#" id="append">Add DIV</a> 
  <div id="parent"></div>

JavaScript

$(document).ready(function() {
    var count = 0;
    $('#append').click(function() {
        $('#parent').append('<div class = "article' + count + '" > im div < /div>');
        count++;
    });
    $('#parent').on('click','div',function() {
    className = $(this).attr('class');
        alert(className);
    });
});